Triangulation ranging is used to determine the distance between a robot and an object. The distance between the light emitting source and light detecting receiver is 24 cm (24 × 10–2 meters). The angle α is measured between the light ray sent out by the emitter and line drawn between the emitter and detector interior to the triangle. The angle β is measured between the light ray light ray received by the detector and the line drawn between the emitter and detector interior to the triangle. The value of the angle α is 87 degrees and the value of the angle β is 76 degrees. Find the distance between the robot and the object.

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Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.